On or about the 20th of September, 1775, the troops under the command of Arnold embarked at Newburyport. This detachment was to penetrate Canada about ninety or one hundred miles below Montreal, proceeding by the Kennebec river, and thence through the wilderness between the St. Lawrence and the settled parts of Maine. In this route, precipitous mountains, deep and almost impenetrable swamps and morasses, were to be passed. Arnold, in a letter to General Washington, dated Fort Weston, September 25th, 1775, says: "I design Chaudiere Pond as a general rendezvous, and from thence proceed in a body. I believe, from the best information I can procure, we shall be able to perform the journey in twenty days; the distance from this being about one hundred and eighty miles."
During the march through the wilderness, no regard whatever was paid to order or discipline. Every man was left to take care of himself, and make the best of his way through the woods. The sufferings of this detachment from wet, and cold, and hunger, were excessive. From the latter, however, Burr suffered less than any of his companions. His abstemious habits in regard to eating seemed peculiarly calculated for such an expedition. Both Burr and Ogden had been accustomed, in small boats, to aquatic excursions round Staten Island and in its vicinity. They were skilful helmsmen, and in this particular, in passing the rapids, were frequently useful. Notwithstanding this qualification, however, Burr, with some soldiers in a boat, was carried over a fall of nearly twenty feet. One man was drowned, and much of the baggage lost. The weather was cold, and it was with great difficulty that he reached the shore.
"Arnold, who, at the head of the two first divisions, still prosecuted his march, was thirty-two days traversing a hideous wilderness, without seeing a house or any thing human. The troops were under the necessity of hauling their bateaux up rapid streams; of taking them upon their shoulders, with all their provisions, across carrying-places; and of traversing, and frequently repassing, for the purpose of bringing their baggage, deep morasses, thick woods, and high mountains. These impediments, notwithstanding the zealous and wonderfully persevering exertions of his men, so protracted his march, that, though he had expected certainly to enter Canada about the middle of October, he did not reach the first settlements on the Chaudiere, which empties itself into the St. Lawrence near Quebec, until the third of November.
"On the high grounds which separate the waters of the Kennebec from those of the St. Lawrence, the scanty remnant of provisions was divided among the companies, each of which was directed, without attempting to preserve any connexion with another, to march with the utmost possible celerity into the inhabited country. While those who gained the front were yet thirty miles from the first poor and scattered habitations which composed that frontier of Canada, their last morsel of food was consumed. But, preceded by Arnold, who went forward for the purpose of procuring for them something which might satisfy the first demands of nature, the troops still persevered in their labours, with a vigour unimpaired by the hardships they had encountered, until they once more found themselves in regions frequented by human beings." [1]
On the arrival of Arnold's detachment at Chaudiere Pond, Burr was despatched with a verbal communication to General Montgomery. He disguised himself as a young Catholic priest. In this order of men he was willing to repose confidence. He knew that the French Catholics were not satisfied with their situation under the provincial government; but especially the priesthood. Feeling no apprehension for his own safety from treachery, he proceeded to a learned and reverend father of the church, to whom he communicated frankly who he was, and what was his object. Burr was master of the Latin language, and had an imperfect knowledge of the French. The priest was an educated man, so that a conversation was held with but little difficulty. He endeavoured to dissuade Burr from the enterprise. Spoke of it as impossible to accomplish. He represented the distance as great, and through an enemy's country. The boyish appearance of Burr induced the reverend divine to consider him a mere child. Discovering, however, the settled purpose of the young adventurer, the priest procured him a confidential guide and a cabriolet (for the ground was now covered with snow), and, thus prepared, he started on his journey. Without interruption, he was conducted in perfect safety from one religious family to another, until he arrived at Three Rivers. Here the guide became alarmed in consequence of some rumours as to the arrival of Arnold at the Chaudiere, and that he had despatched messengers to Montgomery to announce to him the fact. Under strong apprehensions, the guide refused to proceed any farther, and recommended to Burr to remain a few days until these rumours subsided. To this he was compelled to accede; and, for greater security, he was secreted three days in a convent at that place. At the expiration of this period he again set off, and reached Montgomery without further detention or accident.
On his arrival at headquarters, he explained to the general the character of the re-enforcement he was about to receive; the probable number of effective men, and the time at which their arrival might be anticipated. General Montgomery was so well pleased with the details which had been given him, and the manner in which young Burr had effected his journey after leaving Arnold, that he invited him (Burr) to reside at headquarters, assuring him that he should receive an appointment as one of his aids. At this time Montgomery was a brigadier, and not entitled to aids, only in virtue of his being commander-in-chief of the army. Previous to his death, however, he was appointed a major-general, but the information did not reach him.
As soon as Burr had joined the family of the general, he entered upon the duties of an aid; but no formal annunciation was made until the army arrived before Quebec, when his appointment was announced in general orders. Arnold arrived at Point Levi, opposite to Quebec, on the 9th of November, 1775. He paraded for some days on the heights near the town, and sent two flags to demand a surrender, but both were fired upon as rebels with whom no communication was to be held. The true reason, however, was, that Colonel M'Clean, the British commandant, a vigilant and experienced officer, knowing the weakness of his own garrison, deemed it impolitic, if not unsafe, to receive a flag from Arnold.
The first plan for the attack upon the British works was essentially different from that which was subsequently carried into execution. Various reasons have been assigned for this change. Judge Marshall says, "that while the general (Montgomery) was making the necessary preparations for the assault, the garrison received intelligence of his intention from a deserter. This circumstance induced him to change the plan of his attack, which had been originally to attempt both the upper and lower towns at the same time. The plan now resolved on was to divide the army into four parts; and while two of them, consisting of Canadians under Major Livingston, and a small party under Major Brown, were to distract the attention of the garrison by making two feints against the upper town of St. Johns and Cape Diamond, the other two, led, the one by Montgomery in person, and the other by Arnold, were to make real attacks on opposite sides of the lower town." [2]
Colonel Burr says, that a change of the plan of attack was produced, in a great measure, through the advice and influence of Mr. Antill, a resident in Canada, who had joined the army; and Mr. Price, a Montreal merchant of property and respectability, who had also come out and united his destiny with the cause of the colonies. Mr. Price, in particular, was strongly impressed with the opinion, that if the American troops could obtain possession of the lower town, the merchants and other wealthy inhabitants would have sufficient influence with the British commander-in-chief to induce him to surrender rather than jeopard the destruction of all their property. It was, as Colonel Burr thought, a most fatal delusion. But it is believed that the opinion was honestly entertained.
The first plan of the attack was agreed upon in a council, at which young Burr and his friend, Matthias Ogden, were present. The arrangement was to pass over the highest walls at Cape Diamond. Here there was a bastion. This was at a distance of about half a mile from any succour; but being considered, in some measure, impregnable, the least resistance might be anticipated in that quarter. Subsequent events tended to prove the soundness of this opinion. In pursuance of the second plan, Major Livingston, with a detachment under his command, made a feint upon Cape Diamond; but, for about half an hour, with all the noise and alarm that he and his men could create, he was unable to attract the slightest notice from the enemy, so completely unprepared were they at this point.